Malicious PDF — malware analysis report

Static analysis result for SHA-256 a126814483ad83b1…

MALICIOUS

PDF

42.2 KB Created: 2021-05-17 03:16:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 1b61ef76caf3e05b3c517f678303155b SHA-1: 906b7bfa209c60e50fe99be122f6ea4154d80b3e SHA-256: a126814483ad83b1d1de127ea84552c10e2a490717dee98ec6a3fab90a168359
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including a known malicious redirector, disguised as offers for free Robux and game hacks. The document body and embedded URLs strongly suggest a phishing or scam attempt designed to lure users to malicious infrastructure. No scripts were extracted, but the presence of numerous malicious links indicates a high likelihood of a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/431946152/free-robux-gift-card-codes-2021-game-hack In PDF document text
    • https://gimnaziya6.kz/images/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://gimnaziya6.kz/images/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
    • https://gimnaziya6.kz/images/coin-master-jackpot-hack_GM406889139.pdfIn PDF document text
    • https://gimnaziya6.kz/images/roblox-hack-client_GM431946152.pdfIn PDF document text
    • https://gimnaziya6.kz/images/coin-master-hack-game_GM406889139.pdfIn PDF document text
    • https://gimnaziya6.kz/images/how-can-i-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://gimnaziya6.kz/images/robux-free-gift-card_GM431946152.pdfIn PDF document text
    • https://gimnaziya6.kz/images/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://gimnaziya6.kz/images/free-robux-without-offers_GM431946152.pdfIn PDF document text
    • https://gimnaziya6.kz/images/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
    • https://gimnaziya6.kz/images/coin-master-70-spin-link-today_GM406889139.pdfIn PDF document text
    • https://gimnaziya6.kz/images/robux-money_GM431946152.pdfIn PDF document text
    • https://gimnaziya6.kz/images/coin-master-game-free-download_GM406889139.pdfIn PDF document text
    • https://gimnaziya6.kz/images/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
    • https://gimnaziya6.kz/images/coin-master-hack-2021-apk-download_GM406889139.pdfIn PDF document text
    • https://gimnaziya6.kz/images/coin-master-free-spins-no-survey_GM406889139.pdfIn PDF document text
    • https://gimnaziya6.kz/images/100-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://gimnaziya6.kz/images/coin-master-free-spin-now_GM406889139.pdfIn PDF document text
    • https://gimnaziya6.kz/images/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • https://gimnaziya6.kz/images/minecraft-pocket-edition-apk-free-download_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000472d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x472D 25328 bytes
SHA-256: 2640cb4c5ce0c5677ae73a61e94ae0a9c53a622c23a28645f7671ef208f72640
font_01_sfnt_off0000801d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x801D 19044 bytes
SHA-256: a83203ba6d4d8e4db234da74518c811315008a13a6a61ff598d06d89853e7c2b

Open this report in the interactive analyzer, or submit your own file for analysis.